bone neoplasm

Question 1

most common types of cancer that met to bone

Answer 1

breast, lung, thyroid, kidney, prostate (BLT with a Kosher Pickle)

Question 2

most commin sites of mets to bone

Answer 2

proximal femoral head/neck, and veterbral bodies

Question 3

most common tumor of bone

Answer 3

osteochondroma

Question 4

mushroom/brochollu shaped tumor around the knee in a young man

Answer 4

osteochondroma

Question 5

medularry cavity of tumor contigious with medullary cavity of the bone

Answer 5

osteochondroma

Question 6

blue cartilage cap

Answer 6

osteochondroma

Question 7

benign, painless cartilaginous tumor in middle aged pts

Answer 7

endochondroma

Question 8

radiographic stippling

Answer 8

endochrondroma

Question 9

tumor resembling cartilagle

Answer 9

endochrondroma

Question 10

signs that an endochromdroma is turning malignant

Answer 10

new onset of pain
cortical erosion or soft involvement
increased cellularity, evidence of invasive growth, necrosis

Question 11

benign but locally aggressive bone neoplasm

Answer 11

giant cell tumor

Question 12

long bone tumor in ages 25-40

Answer 12

giant cell

Question 13

arises in the epiphysis w/extension into the metaphysis

Answer 13

giant cell

Question 14

way to distinguish giant cell tumor from malignancy

Answer 14

stromal cells should be cytologically bland

Question 15

most common primary bone malignancy

Answer 15

osteosarcoma

Question 16

bone cancer found in young, or old, but not middle aged

Answer 16

osteosarcoma

Question 17

risk factors in older pts for developing osetosarcoma

Answer 17

prior radiation, paget’s disease

Question 18

large, clincially agggressive, painful tumor of long bones

Answer 18

osetosarcoma

Question 19

periosteal elevation

Answer 19

codman’s triangle

Question 20

most common type of osteosarcoma

Answer 20

osteoblastic

Question 21

pink lace-like directly associated with malignant osteoblasts

Answer 21

osteoblastic

Question 22

predominant spindle cells

Answer 22

fibroblastic

Question 23

histological difference between chondrosarcoma and endochondromas

Answer 23

chondrosarcoma shows bony trabecular invasion and extraosseous soft tissue extension

Question 24

blue to gray-white classy tumor (malignant)

Answer 24

chondrosarcoma

Question 25

bone tumor in kids

Answer 25

ewing sarcoma

Question 26

faxtor expressed on ewing’s sarcoma

Answer 26

CD99

Question 27

fried egg appearing bone cancer

Answer 27

ewing’s

Question 28

translocation in ewings

Answer 28

EWS 11;22